http://members.cox.net/michaelshaffer/koi1.jpg
http://members.cox.net/michaelshaffer/koi2.jpg

Any advice for a first time Koi owner? Is it okay to have Water
Hiacinthe (spelling..) in my pond? I heard they eat up all the nutrients
in the water. Do I have to worry about animals trying to eat them? My
pond is about 3.5 feet deep.

Thanks